农学 >>> 农学总论 作物学 园艺学 土壤学 植物保护学 农药学 林学 畜牧学 兽医学 水产学
搜索结果: 1-5 共查到农学 tracer相关记录5条 . 查询时间(0.156 秒)
The magnetic resonance imaging (MRI) technique was used for the visualisation and interpretation of flow paths. A set of tracer-infiltration experiments was performed on soil columns filled with packe...
Program delivery has a major impact on pesticide applicators’ reception to learning. This study evaluated the impact of different training delivery styles, with and without the demonstration of fluore...
The field experiment was laid out with randomized block design with split plot and three replications during the 1991- 92 years. Each plot was 16 m 2 . Tobacco-waste at the rates of 0, 10, 20, 30 and ...
Radioactive tracer techniques were used for in-situ measurements of the solute velocity, longitudinal dispersion coefficient, and bypassing ratio, as well as for estimation of the impact of land-use c...
Quantification of plant available phosphorus to the residual crop of sunflower in maize – sunflower cropping sequence from organic manures namely farmyard manure (FYM), poultry manure (PM), Bio compos...

中国研究生教育排行榜-

正在加载...

中国学术期刊排行榜-

正在加载...

世界大学科研机构排行榜-

正在加载...

中国大学排行榜-

正在加载...

人 物-

正在加载...

课 件-

正在加载...

视听资料-

正在加载...

研招资料 -

正在加载...

知识要闻-

正在加载...

国际动态-

正在加载...

会议中心-

正在加载...

学术指南-

正在加载...

学术站点-

正在加载...